1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/tests/non262/Temporal/TimeZone/getPossibleInstantsFor-returns-dead-proxy.js b/js/src/tests/non262/Temporal/TimeZone/getPossibleInstantsFor-returns-dead-proxy.js
new file mode 100644
index 0000000000..0af1889bea
--- /dev/null
+++ b/js/src/tests/non262/Temporal/TimeZone/getPossibleInstantsFor-returns-dead-proxy.js
@@ -0,0 +1,21 @@
+// |reftest| skip-if(!this.hasOwnProperty("Temporal")||!xulRuntime.shell)
+
+var g = newGlobal({newCompartment: true});
+
+var tz = new class extends Temporal.TimeZone {
+  *getPossibleInstantsFor() {
+    // Return an Instant from a different compartment.
+    yield new g.Temporal.Instant(0n);
+
+    // Turn the CCW into a dead proxy wrapper.
+    nukeAllCCWs();
+  }
+}("UTC");
+
+var dt = new Temporal.PlainDateTime(2000, 1, 1);
+
+// Throws a TypeError when attempting to unwrap the dead proxy.
+assertThrowsInstanceOf(() => dt.toZonedDateTime(tz), TypeError);
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);